摘要
针对传统状态空间平均法不适用于谐振变换器建模的问题,采用扩展描述函数法,建立了双向全桥CLLLC谐振变换器的小信号模型;给出了该变换器谐振参数的设计方法,得到了适用于本文变换器的参数;设计了正向/反向运行时的控制器补偿函数,并搭建闭环仿真电路进行了仿真分析.仿真结果验证了本文所建立的模型和设计的控制器补偿函数的正确性.
In order to solve the problem that the traditional state-space average method is not applicable to resonant converter modeling, this paper uses extended description function method to establish a small signal model of bi-directional full-bridge CLLLC resonant converter, presenting the design method of the resonant parameters of the converter and obtaining the parameters suitable for the converter. And then, the paper designs the controller compensation function for forward/reverse operation, and also builds the closed-loop simulation circuit for simulation and analysis. The simulation results verify the correctness of the proposed model and the designed controller compensation function.
作者
胡方舟
熊俊芬
祁承超
HU Fangzhou;XIONG Junfen;QI Chengchao(Air Force EarlyWarning Academy,Wuhan 430019,China;Hankou Section,General Hospital of Central Theater Command,Wuhan 430010,China)
出处
《空军预警学院学报》
2019年第6期446-450,454,共6页
Journal of Air Force Early Warning Academy
关键词
双向CLLLC谐振变换器
变频控制
扩展描述函数法
小信号模型
控制器补偿函数
bi-directional CLLLC resonant converter
frequency conversion control
extended description function method
small signal model
controller compensation function
